Answer :
Option C) 2.5 units
Explanation : For calculating the strength of a unknown magnetic field in comparison with the given magnetic field we can use the magnetic formula as;

On substituting the values we get;

;
On solving we get the magnetic B field strength as
2.5 units
An index fossil is a fossil that is useful for dating and correlating the strata in which it is found.
Or it is a fossil that helps you find the date where it has been found. I rephrased that.
Answer:
True
Explanation:
lithium atoms lose one electron each while chlorine atoms gain one electron each
Answer:
Letter B.
Explanation:
Changing its direction and climbing a steep incline can't be proven only by the graph info. You can see that it's speed isn't constant in the graph.
We have letter B left.